This is Perl module Test::Flatten.
INSTALLATION
Test::Flatten installation is straightforward. If your CPAN shell is set up,
you should just be able to do
% cpan Test::Flatten
Download it, unpack it, then build it as per the usual:
% perl Makefile.PL
% make && make test
Then install it:
% make install
DOCUMENTATION
Test::Flatten documentation is available as in POD. So you can do:
% perldoc Test::Flatten
to read the documentation online with your favorite pager.
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